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3-16 Series 90-30/20/Micro Programmable Controllers Reference Manual – September 1998 GFK-0467K
3
Communications Failure During Store
The Fault Group Communications Failure During Store occurs during the store of program
blocks and other data to the PLC. The stream of commands and data for storing program blocks and
data starts with a special start-of-sequence command and terminates with an end-of-sequence
command. If communications with the programming device performing the store is interrupted or
any other failure occurs which terminates the load, this fault is logged. As long as this fault is
present in the system, the controller will not transition to RUN mode.
This fault is not automatically cleared on power-up; the user must specifically order the condition to
be cleared. The fault action for this group is Fatal.
Correction:
Clear the fault and retry the download of the program or configuration file.